Coffee-pot.



A. H. S. SWAN.

COFFEE POT.

APPLICATION FILED NOV.14, 1911.

1 1,031,486, Patented July 2, 1912.-

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ALFRED H. S. S'WAN, OF ROCHESTER, NEW YORK, ASSIGNOR TO ROCHESTERSTAMPING COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

COFFEE-POT.

To all whom it may concern:

Be it known that I, ALFRED H. S. SWAN, of Rochester, in the county ofMonroe and State of New York, have invented certain new and usefulImprovements in Coffee- Pots; and I do hereby declare the following tobe a full, clear, and exact description of the same, reference being hadto the accompanying drawings, forming a part of this specification, andto the reference-numerals marked thereon.

My present invention relates to coffee pots and similar cookingutensils, comprising, generally, means for making an infusion byspraying water over the material while gradually increasing thetemperature and permitting it to percolate therethrough, and it has forits object to provide a novel construction and arrangement of parts foraccomplishing the desired end. A

To these and other ends the invention consists in certain improvementsand combinations of parts all as will be hereinafter more fullydescribed, the novel features being pointed out in the claims at the endof the specification.

In the drawings: Figure 1 is a vertical sectional view of a coffee potembodying my invention; Fig. 2 is a bottom plan view of the percolatingmechanism, and Fig. 8 is a bottom view of the valve.

Similar reference numerals throughout the several figures indicate thesame parts.

The present embodiment illustrates my invention as applied to a cookingvessel in the form of a coffee pot comprising a bodyportion A having theusual opening adapted to be closed by a hinged cover including anannular rim B and a central dome b, the latter being constructedpreferably of glass or other transparent material. The body portion isarranged on the base 1 in a manner that will now be described, and tothis end, the base is provided with the neck 2, preferably integraltherewith, and about which is arranged the disk, or support, 3, thelatter being disposed in spaced relation above the base 1, as shown. Thebody-portion A is provided with an opening centrally of its bottom toreceive the threaded flange 4 formed on the support 3, the bodyportionbeing held on said support by means of a clamping nut 5 and washer 6,respectively, which cooperate with the flange t Specification of LettersPatent.

Application filed November 14, 1911.

Patented July 2, 1&12.

Serial No. 660,223.

already mentioned. The neck 2 affords a chamber 7 on the base, and itwill be noted that the bottom of the chamber is in somewhat closeproximity to the bottom of the base 1 so that the temperature of theliquid within said chamber will be raised quickly by application of heatto the base. The bot-- tom of the chamber is preferably rounded, asshown, in order to efiect the ready formation of gas or steam bubblesand their liberation from the bottom of the chamber. Further, theinterior formation of the chamber permits the int-lowing liquid tocontact quickly with all parts of its surface. A suitable space isafforded between the neck 2 and the flange 4 for a purpose that willpresently be apparent, said flange being suitably formed to receive thepercolating mechanism that will now be described.

The percolating mechanism preferably comprises a casing 8, the lower endof which is adapted to be received within the flange 4t. Extendingvertically through the upper part of the casing 8 is the tube 9, theupper end of which is positioned near the top of the body-portion andabove the perforated basket or receptacle 10 containing the coffee orother material from which the infusion is to be made. The lower end ofthe tube 9 is arranged at a point within the casing 8 and is providedwith a funnel member or de flector 11 which is arranged above andsurrounding the top of the neck 2. The deflector 11 is so arranged withrelation to the chamber 7 and easing 8 that more or less restrictedpassages are formed therebetween causing the liquid to pass downwardlyaround the lower edge of the deflector, thence upwardly about the edgeof the neck 2 and over the latter into the chamber 7. In order tocontrol the passage of liquid into the casing 8, a gravity valve isprovided, and to this end, the casing is provided with an extension 12having a passage 13 formed therein and carrying a valve chamber whichincludes the threaded flange 1% and the cap 15 having a central opening16 therein. The valve, which is circular, as shown, is held in operativeposition by the cap 15, and comprises a solid central portion 1'7,preferably cut away on its under face, as shown, and surrounded byaseries of circumferentially arranged openings 18 and the rim 19, thelatter being arranged for engagement with the inner wall of the cap 15to insure the proper action of the valve, which is free to movevertically until it engages the shoulder 20.

In the operation of the device, the coffee pot is filled with water toabout the level shown in Fig. 1, and the coffee or other material formaking the infusion is arranged in the receptacle 10. The coffee potbeing then placed on a suitable heating medium, the temperature of theliquid within the chamber 7 is quickly raised until the liquid is forcedupwardly through the tube 9 and downwardly through the receptacle 10. Assoon as this action is commenced, the valve is raised to permit theliquid to pass into the casing 8 through the passage 13, whence it movesfirst downwardly and then upwardly around the deflector ll, thence intochamber 7, from which point the action is repeated and continued untilthe infusion is found to be in its proper form.

I claim as my invention:

1. In a coffee pot, the combination with a base and a hollow neckthereon forming a heating chamber, of a support surrounding the neck andarranged in spaced relation to the base, a body-portion mounted on thesupport, a casing attached to the support, a tube extending from nearthe top of the body-portion to a point within the casing and carrying adeflector which surrounds the top of the said heating chamber, a valvecasing, a hollow extension formed on the first mentioned casing andconnecting the same with the valve casing, and a valve arranged withinthe valve casing.

2. In a coffee pot, the combination with a base and a hollow neckthereon forming a heating chamber, of a support surrounding the neckand. arranged in spaced relation to the base, a body-portion mounted onthe support, a casing attached to the support, a tube extending fromnear the top of the body-portion to a point within the casing andcarrying a deflector which surrounds the top of the said heatingchamber, a circular valve casing having an opening in the bottomthereof, a hollow extension formed on the first mentioned casing andconnecting the same with the valve casing, and a circular valve arrangedin said valve casing.

In a coffee pot, the combination with a base having a heating chamberformed thereon, of a body-portion mounted above the base, a casingarranged at the bottom of the body-portion and surrounding said heatingchamber, a tube extending from near the top of the bodyportion to apoint within the casing and carrying a deflector which surrounds the topof said heating chamber, a valve casing, a hollow extension connect ingthe first mentioned casing with the valve casing, and a valve-arrangedin the valve casing.

ALFRED H. S. SWAN.

Vlitnesses RUssnLL B. GRIFFITH, H. E. Srormnminnn.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

